[PATCH] D48816: [VPlan] Introduce VPLoopInfo analysis.

[Diego Caballero via Phabricator via llvm-commits]

dcaballe created this revision.
dcaballe added reviewers: fhahn, rengolin, mkuper, hfinkel, mssimpso.
Herald added subscribers: llvm-commits, rogfer01, rkruppe, tschuett, bollu, mgorny.

Context: Patch Series #1 for outer loop vectorization support in LV
using VPlan. (RFC: http://lists.llvm.org/pipermail/llvm-dev/2017-December/119523.html).

The patch introduces loop analysis (VPLoopInfo/VPLoop) for VPBlockBases.
This analysis will be necessary to perform some H-CFG transformations and
detect and introduce regions representing a loop in the H-CFG.


Repository:
  rL LLVM

https://reviews.llvm.org/D48816

Files:
  lib/Transforms/Vectorize/VPlan.cpp
  lib/Transforms/Vectorize/VPlan.h
  lib/Transforms/Vectorize/VPlanHCFGBuilder.cpp
  lib/Transforms/Vectorize/VPlanLoopInfo.h
  unittests/Transforms/Vectorize/CMakeLists.txt
  unittests/Transforms/Vectorize/VPlanLoopInfoTest.cpp

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